Paper-feed guide for platen presses



Oct. 14, 1930. H. H. sTRAlT 1,778,469

PAPER FEED GUIDE POR PLATEN PRESSES Filed July 3. 1929 A rma/viv Patented Oct. 14, 1930 rHosen H. STRAIT, or OVERLAND, MISSOURI PAPER-FEED GUIDE FOR PLATEN PRESSES Application ined .my 3,

This invention relates generally to paper guides for printing presses, and more particularly to paper feed guides for platen presses, the predominant object of the in- U vention being to provide an extremely simple, inexpensive, and highly efficient device of this type adapted to be accurately adjusted on a tympan to serve as a stop, or gage, for the sheets of paper transmitted to the tympan.

Fig. 1 is a top or plan view showing three of my guides mounted on a tympan.

Fig. 2 is an enlarged top or plan view of a guide embodying the features of this invention.

3 is an enlarffed longitudinal section of the guide showing same mounted on a tym pan and platen.

Fig. 4 is a view similar to Fig. 3, but illustrating certain parts of the guide in moved Z positions.

Fig. 5 is a fragmentary perspective showingthe manner in which the lever of the guide is hingedly supported.

ln the drawing, wherein is shown' for the 2 purpose of illustration, merely, one embodiment ofthe invention, A designates a tympan sheet adapted to be secured to a platen. B by means of a tympan drawer C, as illustrated in Fig. 1. G designates in Fig. 1 a plurality of my improved guides, which are secured to the tympan so as to determine the location of the paper to be printed.

Each guide Gy comprises an abutment flange 1 having asmooth lower edge adapted to engage the tympan sheet A, said abutment flange 1 being a part of a. downturned flange 2 which extends frornthe upper edge of the abutment flange 1 and contacts with the rear face of said abutment flange 1. A flat plate 0 Sie integrally connected to the lower edge of the downturned flange-2, and this plate eK- tends rearwardly from vsaid lower edge of said flange, as shown in Figs. 3 and fl. T he lower edge of V'the `flange 2 is preferably im higher' than the lower edge of the abutment' flange 1 (Figs. 3 and l), so the flange 2 and vplate 3 will not in anyway prevent the lower edgeof'the flange 1 from firmly engaging F, the topkface of the tympan sheet A.' Atthe N re'armos't end of ythe plate?) the Same is pro- 1929. Serial No. 375,843.

vided with a rearwardly and upwardly exterid1ed tongue l., and at a point spaced inwardly from said tongue l l provide said plate 3 with an aperture 5. The material of which the plate 3 is formed is bent so the portion 6 of the plate to the immediate rear of the aperture 5 is elevated slightly above the remainder of said plate, the portions of the plate at opposite sides ofthe elevated portion being in substantially the same vertical plane as the remainder of the plate. This bent arrangement of the plate provides the aperture 5 with height measured from the top face of the plate 3,y so that a thin sheet metal tongue 7 may be passed through said aperture when said tongue is arranged in a substantially horizontal plane, as shown in Figs. 3 and l The flanges 1 and 2 are provided with registering apertures 8 through which the tongue 7 extends.

9 designates the supporting element of the guide, which comprises a blade 10 having a tapered or sharpened forward end 11, an upstanding rear wall 12 formed integral with said blade, and forwardly extended side arms 13 formed integral with said rear wall 12. The side arms 13 at their forward ends are provided each with an aperture 14, and the rear wall 12 is provided with an aperture 15 through which the rearwardly ext-ended portion of the tongue l extends, the upwardly extended. portion of the tongue l being arranged in Contact with the rear face of the rea-r wall 12.

'16 designates a gripping lever which is piv- Vy mounted between and supported by the side arms 1?. said lever preferably comprisen l substantially L-shaped piece of material ng extensions 1T formed at the opposite .si-aes thereof. which are extended into the apertures lll formed in the side arms 13 so as to cause the gripping lever 16 to be pivotally supported by said side arms. The gripping leverincludes ay short arm 18 and a longer arm 19wvliich serves asa handle, and said short arm 18 is notched as indicated at 20. The top edge of the rear wall 12 of the supporting element 9 is notched as indicated at 21, this notch being intended for a purpose to Vbe hereinafter referred to.

ln applying my improved guide to the platen of a press the tympan sheet A of said platen is provided with a slit such as that indicated by the reference character 22 in Figs. 2, 3, and 4t, and the blade 10 of the supporting d element 9 of the guide G is passed through sions 17pass through the apertures 14 in the side arms 13, and such movement will cause the outer edge of the short arm 18 of the gripping lever to engage the plate 3 as said short f armmovesdownwardly inan arc of a circle,

whereby said plate 3 is moved downwardly into close'contact-with the top face of the tympan sheet A. vVh'en the plate 3 Vhas been moved downwardly as described, the tympan sheetA will be tightly gripped between said plate 3 andthe blade 10 of the supporting element A9 whereby the guide G is securely fastened to said tympan sheet. lf desired, the top face'of the blade 10 may be roughened so as to more firmly gripl the tympan sheet.

. When thel gripping lever 16 Vis in the position in which same is shown in Fig.- 3, the outer portion of the arm l'thereof'lies Within the notch 21 at the yupper edge of the rear Wall 12 of the supporting element 9,7whereby transverseinovementof said arm 19 is prevented. TWhen the gripping lever 16 1s moved to thek gripping lposition as shownl in Fig. 3, some downwardpressure is felt atY the rear portion of the plate 3, and this downward pressure y(il) .will subi ect the tongue v7 to frictiomwhereby accidental Amovement thereof vwill be prevented. l-lowever, this friction is not sufficiently great to lock the tongue against intentional movement, hence said tongue may be grasped ,and moved longitudinally asjdesired. Due to i of the notch 2O in the outer edge the presence ofthe short arm-18 of the gripping lever 16, no Vpressurer is applied to the tongue 7 by said gripping lever. Y Y

An important feature of this invention resides inits great simplicity of construction and the consequent ease of assembling the guide, said guide comprising only four parts,

namely, the supporting element 9,'the plate 3 with its associated flanges 1 and 2 and tongue 4:, thegripping lever 16, andthe Vthin metal tongue' 7 Y In assembling the guide, all thatV need 'be done istopass the'tongue L through the aperture 15 inthe rear wall 12 of the supporting elenient9,I after which the side arms 13 are spreadsli'ghtly andthe' gripping vlever mounted in placeby passing the extensions 17;

on said gripping lever through the apertures 14 at the ends of said side arms. The thin sheet metal tongue 7 is then passed through the apertures 8, 5, and 15, and the guide is ready for use.

W ith a plurality of the guides Gr secured to the tympan sheet of a platen, the sheets being printed (one of which is indicated lat23 in Figs. 1, 2 and 3) are moved into Contact with the abutment flanges 1 of said guides at points beneath the tongues 7 whereby said sheets will be properly positioned for the printing operation. i

1. A feed guide comprising a supporting Velement including an upstanding Arear wall andprovided with a blade adapted topass through a tympan sheet, 'side arms formed on said supporting element, a member pi'ovided with an abutment, said member being loosely connected to said supporting element by means of a tongue formed thereon which is extended through an aperture formed Vin said upstanding rear Wall of said supporting element, and a gripping lever pivotally attached to said side arms and adapted to'contact with a portion of said member whereby said member is forced toward said blade.

2. A feed guide comprising a supporting element provided withA a blade `adapted `to n pass through a tympan sheet, side arms 'formed on said supporting element, a member provided with an abutment, said member being loosely connected to said supporting element, a gripping lever pivotally attached to said side arms and adapted to 4Contact with a portion of said memberwhereby said mem-1 ber is forced toward saidblade, and a longitudinally adjustable tongue supportedV in apertures formed in said abutment and said supporting elementsaid. tongue being eX- tended through anaperture formedin said member andV said `member being bent at said openingfto Vprovide an openingV of greater height than the thicknessof the material of Whichysaid member is formed.

3. A feed guide comprisinga supporting element provided with a blade adapted vto pass through a tympan sheet-,side arms formed on said supporting element, a member provided with an abutment, said meniber vbeing loosely connected to said supporting element, a gripping lever pivotallyv attached to said side arms and adapted yto, contact with a portion of saidjmember Whereby said member is forcedtoward said blade, and a longitudinally adjustable tongue supported inapertures formed in said abutment ,and said supporting element, said tongue being extended" through an apertureformed in said .membeig and saidmember being shapedyto provide .araisedjportion imme-i'` diatelyv adjacent to said v aperture vbeneath which said ton gue passes whereby saidY inem-l Vber is providedjwith yan opening ofV greater height than the thickness of the material of which said member is formed.

4. A feed guide comprising a supporting element including an upstanding rear wall and provided with a blade adapted to pass through a tympan sheet, side arms formed `onsaid supporting element, a member provided with an abutment, said member being loosely connected to said supporting element by means of an upwardly bent tongue formed thereon which is extended through an aperture formed in said upstanding rear wall of said supporting element, a gripping lever pivotally attached to said side arms andadapted to contact with a portion of said member whereby said member is forced toward said blade, and a longitudinally adjustable tongue supported in apertures formed in said abutment and said supporting element, said gripping lever being provided with a notch through which said tongue is extended.

5. A feed guide comprising a supporting element including an upstanding rear wall and provided with a blade adapted to pass through a tympan sheet, side arms formed on said supporting element, a member provided with an abutment, said member being loosely connected to said supporting element by means of upwardly bent tongue formed thereon which is extended through an aperture formed in said upstanding rear wall of said supporting element, a gripping lever pivotally attached to said side arms and adapted to contact with a portion of said member whereby said member is forced toward said blade, and a longitudinally adjustable tongue supported in apertures formed in said abutment and said supporting element, said gripping lever being provided with a notch through which said tongue is extended, and said supporting element being provided with a notch in which a portion of said gripping lever rests when said gripping lever is in the gripping position.

In testimony that I claim the foregoing I hereunto aiiix my signature.

HOSEA H. STRAIT. 

